The Double G—an archival reprisal of the House's signature emblem—hangs from a 925 sterling silver necklace, enriched with mother of pearl, turquoise-colored resin and topaz stones. 925 Sterling silver with aged finish Mother of pearl, turquoise-colored resin and blue topaz stones Pendant: .6'' x .5'' Clasp closure 15.5" length adjustable to 16.5" Made in Italy